# Copyright (c) 2024 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


import functools
from .dataset import MMDataset


def register(cls=MMDataset, force=False):
    '''register
    '''
    def decorator(func):
        @functools.wraps(func)
        def wraps(*args, **kwargs):
            return func(*args, **kwargs)
        if not force:
            assert func.__name__ not in cls.__dict__, \
                f'{func.__name__} already in ({cls.__name__})'
        setattr(cls, func.__name__, wraps)
        return wraps
    return decorator